Some embodiments of the subject technology provide a novel system for synchronizing content items among a group of peer devices. The content synchronizing system of some embodiments includes the group of peer devices and a set of one or more synchronizing servers communicatively connected with the peer devices through one or more networks. In some embodiments, the synchronizing system uses a star architecture, in which each peer device offloads its synchronization operations to the synchronizing server set. Without establishing a peer-to-peer communication with any other peer device, the particular peer device in these embodiments supplies an encrypted content item set along with the N−1 encryptions of a content key used to encrypt the content item set to the synchronizing server set so that this server set can distribute the encrypted content item set and an encrypted content key to each of the N−1 peer devices.
Legal claims defining the scope of protection, as filed with the USPTO.
4. The method of claim 3, wherein each list identifier of each list of devices is generated by computing a hash value of the identifiers of the devices in the list of devices.
8. The method of claim 1, wherein no list of devices supplied by one device can be modified to add a device to the list of devices or to remove a device from the list of devices.
9. The method of claim 1, wherein the selection of the first list of devices by the particular device indicates that the first list of devices accurately identifies the devices in the group.
14. The device of claim 13, wherein each list identifier of each list of devices is generated by computing a hash value of the identifiers of the devices in the list of devices.
17. The device of claim 11, wherein the selection of the first list of devices by the particular device indicates that the first list of devices accurately identifies the devices in the group.
22. The non-transitory machine readable medium of claim 21, wherein each list identifier of each list of devices is generated by computing a hash value of the identifiers of the devices in the list of devices.
26. The non-transitory machine readable medium of claim 19, wherein no list of devices supplied by one device can be modified to add a device to the list of devices or to remove a device from the list of devices.
27. The non-transitory machine readable medium of claim 19, wherein the selection of the first list of devices by the particular device indicates that the first list of devices accurately identifies the devices in the group.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
June 1, 2018
December 13, 2022
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